EEVblog

By David L. JonesTechnology Education

EEVblog episodes

October 31, 2019 EEVblog #1254 – Mailbag
More Mailbag! Forum HERE
53 min
October 31, 2019 EEVblog #1253 – LED Flicker 2: Electric Boogaloo
Part 2 of the LED Flicker investigation. Modding the driver for input and output capacitance and it’s effect on power factor correction and thermal performance.
22 min
October 11, 2019 EEVblog #1252 – LED Panel Lighting Flicker Investigated
Dave investigates why his new LED panel lights are flickering on camera. Teardown and measurement time. Forum HERE
20 min
October 08, 2019 EEVblog #1251 – LifeSaber Kickstarter – A Master of None FAIL
The LifeSaber Kickstarter outdoor survival tool is a classic example of a Jack of all trades, master of none product design. A master class in how not to design a practical product. Yet another wind-up/crank USB charger tool with everything but the kitchen sink. It even has ALIENS! Compare Dave’s survival kit with the LifeSaber ...
29 min
October 05, 2019 EEVblog #1250 – World’s Thinnest Wallet Review – Stealth Razor
Dave got one of these newfangled slim wallets, the Stealth Razor from Airo Collective, a Kickstarter project, the world’s thinnest wallet. Does it actually replace a full traditional leather wallet? How practical is it? Does the RFID protection work?
15 min
October 02, 2019 EEVblog #1249 – How To Read Timing Diagrams
A tutorial on how to read timing diagrams. An essential skill for designing and understanding digital logic, FPGA and microcontroller designs and datasheets. Forum HERE
37 min
September 28, 2019 EEVblog #1248 – INSANE! A 0.02% Process Meter for $9? WTF!
Dave found this crazy bargain of the century no-name $9 0.02% class multifuction process calibrator on Aliexpress. Is it any good? Actually, it’s an AIMOmeter AMPX1 that sells for over $200 on ebay, so what gives? How can they possibly manufacture and sell a 0.02% class device for under ten bucks? Teardown time. Links to ...
25 min
September 26, 2019 EEVblog #1247 – DDR Memory PCB Propagation Delay & Layout
When does PCB propagation delay matter in PCB layout? Dave goes down the rabbit hole from DIY TTL processor design to DDR memory design and layout. DDR memory termination. What is a timing budget? When is it important? How does signal integrity matter? When do you have to do serpentine PCB traces to match trace ...
40 min
September 16, 2019 EEVblog #1246 – Dumpster TV to Retro RGB Monitor Conversion
How to convert a dumpster Sony CRT TV into a retro computer RGB monitor. Going through the design considerations, schematics, datasheets and the “jungle chip” and how to feed in the RGB signal and switch it. Also a look at the the old school CGA video interface on an IBM PCjr and how to convert ...
30 min
September 16, 2019 EEVblog #1245 – A Most Excellent REPAIR: IBM PCjr Keyboard
Can you find the fault in the IBM PCjr wireless keyboard before Dave does? A most excellent adventure in troubleshooting. Forum HERE
29 min